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ACI-ASTM CK35MN Steel vs. C96400 Copper-nickel

ACI-ASTM CK35MN steel belongs to the iron alloys classification, while C96400 copper-nickel belongs to the copper alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK35MN steel and the bottom bar is C96400 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
140
Elongation at Break, % 40
25
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 81
51
Tensile Strength: Ultimate (UTS), MPa 650
490
Tensile Strength: Yield (Proof), MPa 310
260

Thermal Properties

Latent Heat of Fusion, J/g 310
240
Maximum Temperature: Mechanical, °C 1100
260
Melting Completion (Liquidus), °C 1460
1240
Melting Onset (Solidus), °C 1410
1170
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 12
28
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 31
45
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 5.9
5.9
Embodied Energy, MJ/kg 81
87
Embodied Water, L/kg 210
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
100
Resilience: Unit (Modulus of Resilience), kJ/m3 240
250
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 22
15
Strength to Weight: Bending, points 21
16
Thermal Diffusivity, mm2/s 3.3
7.8
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.15
Chromium (Cr), % 22 to 24
0
Copper (Cu), % 0 to 0.4
62.3 to 71.3
Iron (Fe), % 43.4 to 51.8
0.25 to 1.5
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 6.0 to 6.8
0
Nickel (Ni), % 20 to 22
28 to 32
Niobium (Nb), % 0
0.5 to 1.5
Nitrogen (N), % 0.21 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.020
Residuals, % 0
0 to 0.5